Add field to profile for user to specify type

[ezwang]

The user can specify either undergraduate, graduate, or staff member. Doesn't do much currently, but can be useful for later features if we want to provide relevant members with information tailored to their needs.

Will be good to collect this information early in case we need it later on. There is a detection method, but it is inaccurate and unreliable.

@ArmaanT Not sure how this might interfere with centralized user account information on Platform, so tagging you.

[cphalen]

LGTM!

[ArmaanT]

We have a degree type on our Major model (link) which can differentiate between undergrad and grad. The user should already be in a group called platform_staff if they're a staff memeber

[codecov]

Codecov Report

Merging #421 (b20d4ff) into master (a9c96a8) will decrease coverage by 0.05%.
The diff coverage is 56.25%.

@@            Coverage Diff             @@
##           master     #421      +/-   ##
==========================================
- Coverage   74.38%   74.33%   -0.06%     
==========================================
  Files          30       30              
  Lines        5201     5217      +16     
==========================================
+ Hits         3869     3878       +9     
- Misses       1332     1339       +7     

Flag	Coverage Δ
backend	74.33% <56.25%> (-0.06%)	⬇️
frontend	?

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Impacted Files	Coverage Δ
backend/clubs/models.py	89.37% <53.33%> (-0.83%)	⬇️
backend/clubs/serializers.py	78.13% <100.00%> (+0.02%)	⬆️

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[ezwang]

@ArmaanT Rerequesting review so I can get your opinion on these labels. Are there better labels that we can use? What is the difference between a masters and a professional student? They generally seem very intertwined when Penn refers to them, would everyone be able to tell which one they should select?

[ArmaanT]

On platform we're using the labels that Penn used to label degrees (link). I'm sure Penn isn't very consistent in their naming, but I think this should be good enough for us. There are definitely conflicts (for example an Accounting MBA is both a Master's and a Professional degree) so we just choose the first label that applies. Bachelor's, then Master's, then PhD, then Professional